Fallback
Tiny paid recovery and decision utilities for autonomous agents.
¿Debería usar esto?
Calidad y seguridad
A
Basado en el análisis automatizado de las definiciones de herramientas y el cumplimiento del protocolo.
Costo de contexto
~1,882Tokens (definiciones de herramientas)
~4.3 KBTamaño de respuesta típico
Impacto moderado en la atención (1.47% del contexto de 128k)
Este es el número aproximado de tokens que se consumen cada vez que las herramientas del servidor se cargan en el contexto de un modelo. Los recuentos más altos reducen la atención disponible para otras tareas.
Instalar
Instalación con un clic
Agrega esto a tu archivo `claude_desktop_config.json`:
{
"mcpServers": {
"fallback-agent-tools": {
"url": "https://fallback.factrail.online/mcp"
}
}
}Puntos de conexión remotos
https://fallback.factrail.online/mcpstreamable-httpQué puede hacer
Inventario de herramientas
Herramientas (4)
🟢 Solo lectura🟡 Escritura🔴 Eliminación⚪ Desconocido
🟢source_route(goal, domain, start_url, preferred_formats, require_official, ...)
Find likely authoritative or machine-readable sources when you know what information you need but not where to retrieve it. Provide a goal and optional publisher domain or start URL; it returns ranked candidate routes and bounded evidence. Use it before blind searching. Do not use it when you already have the correct source or only need reasoning over supplied context. Price: $0.02 USD per call via x402.
Esquema de entrada
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 3,
"maxLength": 500
},
"domain": {
"type": "string",
"maxLength": 253,
"format": "hostname",
"pattern": "^(?=.{1,253}\\.?$)[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[-0-9a-zA-Z]{0,61}[0-9a-zA-Z])?)*\\.?$"
},
"start_url": {
"type": "string",
"maxLength": 2048
},
"preferred_formats": {
"maxItems": 7,
"type": "array",
"items": {
"type": "string",
"enum": [
"json",
"csv",
"xml",
"rss",
"api",
"bulk_download",
"html"
]
}
},
"require_official": {
"default": false,
"type": "boolean"
},
"max_candidates": {
"default": 5,
"type": "integer",
"minimum": 1,
"maximum": 10
}
},
"required": [
"goal"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}⚪error_route(goal, request, response, error, attempt)
Diagnose a failed API, HTTP, MCP, or tool request and return a bounded safe next action. Use it after a request fails when the safe next step is unclear. Provide a status, response, or error text; it does not execute requests or verify undocumented fixes. Price: $0.002 USD per call via x402.
Esquema de entrada
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 1,
"maxLength": 500
},
"request": {
"type": "object",
"properties": {
"method": {
"type": "string",
"maxLength": 16
},
"url": {
"type": "string",
"maxLength": 2048
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 2048
}
},
"body": {}
},
"additionalProperties": false
},
"response": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"minimum": 100,
"maximum": 599
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 2048
}
},
"body": {
"type": "string",
"maxLength": 8192
}
},
"additionalProperties": false
},
"error": {
"type": "string",
"maxLength": 2048
},
"attempt": {
"type": "integer",
"minimum": 1,
"maximum": 100
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}⚪request_repair(goal, request, response, error, error_route, ...)
Repair a failed API or HTTP request using only supplied schema and error evidence. Use after error_route identifies a request-shape or input problem. Returns the smallest justified request changes and abstains when evidence is insufficient. Price: $0.005 USD per call via x402.
Esquema de entrada
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 1,
"maxLength": 500
},
"request": {
"type": "object",
"properties": {
"method": {
"type": "string",
"minLength": 1,
"maxLength": 16
},
"url": {
"type": "string",
"maxLength": 2048
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 4096
}
},
"query": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"$ref": "#/$defs/__schema0"
}
},
"body": {
"$ref": "#/$defs/__schema0"
}
},
"additionalProperties": false
},
"response": {
"type": "object",
"properties": {
"status": {
"type": "integer",
"minimum": 100,
"maximum": 599
},
"headers": {
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"type": "string",
"maxLength": 4096
}
},
"body": {
"$ref": "#/$defs/__schema0"
}
},
"additionalProperties": false
},
"error": {
"type": "string",
"maxLength": 4000
},
"error_route": {
"type": "object",
"properties": {
"classification": {
"type": "string",
"enum": [
"authentication_required",
"authorization_denied",
"rate_limited",
"quota_exhausted",
"payment_required",
"payment_failed",
"schema_mismatch",
"invalid_input",
"not_found",
"method_not_allowed",
"unsupported_media_type",
"timeout",
"connection_failure",
"dns_failure",
"tls_failure",
"upstream_failure",
"service_unavailable",
"conflict",
"stale_state",
"malformed_response",
"blocked_or_challenged",
"unknown"
]
},
"retry": {
"type": "string",
"enum": [
"never",
"immediate",
"after_delay",
"after_change",
"after_auth",
"after_payment",
"unknown"
]
}
},
"required": [
"classification"
],
"additionalProperties": {}
},
"schema": {
"$ref": "#/$defs/__schema0"
},
"constraints": {
"default": {
"allow_method_change": false,
"allow_url_change": false
},
"type": "object",
"properties": {
"allow_method_change": {
"default": false,
"type": "boolean"
},
"allow_url_change": {
"default": false,
"type": "boolean"
}
},
"additionalProperties": false
}
},
"required": [
"request"
],
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false,
"$defs": {
"__schema0": {
"anyOf": [
{
"type": "string",
"maxLength": 8192
},
{
"type": "number"
},
{
"type": "boolean"
},
{
"type": "null"
},
{
"maxItems": 256,
"type": "array",
"items": {
"$ref": "#/$defs/__schema0"
}
},
{
"type": "object",
"propertyNames": {
"type": "string",
"maxLength": 128
},
"additionalProperties": {
"$ref": "#/$defs/__schema0"
}
}
]
}
}
}🟢stop_search(goal, checks, remaining_routes, search_budget, risk)
Decide whether another search or paid retrieval is worth the cost based on the scope already checked. Use after several search or source checks when you need to decide whether to continue or return a scoped not-found result. It does not prove universal absence and performs no searches itself. Price: $0.003 USD per call via x402.
Esquema de entrada
{
"type": "object",
"properties": {
"goal": {
"type": "string",
"minLength": 1,
"maxLength": 500
},
"checks": {
"default": [],
"maxItems": 40,
"type": "array",
"items": {
"type": "object",
"properties": {
"target": {
"type": "string",
"minLength": 1,
"maxLength": 300
},
"method": {
"type": "string",
"enum": [
"direct",
"search",
"documentation",
"api_catalog",
"registry",
"browser",
"other"
]
},
"result": {
"type": "string",
"enum": [
"found",
"not_found",
"inconclusive",
"error",
"blocked",
"contradictory"
]
},
"authority": {
"type": "string",
"enum": [
"primary",
"official",
"secondary",
"general",
"unknown"
]
},
"coverage": {
"type": "string",
"enum": [
"low",
"medium",
"high"
]
},
"exhaustive": {
"default": false,
"type": "boolean"
},
"checked_at": {
"type": "string",
"format": "date-time",
"pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$"
}
},
"required": [
"target",
"method",
"result",
"authority",
"coverage"
],
"additionalProperties": false
}
},
"remaining_routes": {
"default": [],
"maxItems": 20,
"type": "array",
"items": {
"type": "object",
"properties": {
"route": {
"type": "string",
"minLength": 1,
"maxLength": 300
},
"expected_value": {
"anyOf": [
{
"type": "string",
"enum": [
"low",
"medium",
"high"
]
},
{
"type": "string",
"const": "unknown"
}
]
},
"estimated_cost_usd": {
"type": "number",
"minimum": 0,
"maximum": 10000
}
},
"required": [
"route",
"expected_value"
],
"additionalProperties": false
}
},
"search_budget": {
"type": "object",
"properties": {
"calls_used": {
"type": "integer",
"minimum": 0,
"maximum": 10000
},
"calls_remaining": {
"type": "integer",
"minimum": 0,
"maximum": 10000
},
"cost_used_usd": {
"type": "number",
"minimum": 0,
"maximum": 10000
},
"cost_remaining_usd": {
"type": "number",
"minimum": 0,
"maximum": 10000
}
},
"additionalProperties": false
},
"risk": {
"default": "medium",
"type": "string",
"enum": [
"low",
"medium",
"high"
]
}
},
"$schema": "https://json-schema.org/draft/2020-12/schema",
"additionalProperties": false
}Comunidad
Evidencia
Observaciones recientes
verificadoversión no registrada4 herramientas